Studies Towards the Synthesis of Superstolide A: An Aldol-Based Construction of an Advanced C1-C5/C20-C26 Segment
作者:Ian Paterson、Angela C. Mackay
DOI:10.1055/s-2004-825619
日期:——
Based on a boron-mediated syn aldol reaction of an alanine-derived ethyl ketone with an α-chiral aldehyde partner, an advanced intermediate for superstolide A was assembled in a highly stereocontrolled fashion. Controlled1,3-anti reduction of the resulting β-hydroxy ketone gave the characteristic amino diol stereopentad of superstolide, followed by a Takai olefination and esterification of the C23
基于丙氨酸衍生的乙酮与α-手性醛伙伴的硼介导的合成羟醛反应,以高度立体控制的方式组装了一种用于 superstolide A 的高级中间体。得到的 β-羟基酮的受控 1,3-反还原得到了 superstolide 的特征性氨基二醇立体五单元组,然后对 C23 羟基进行 Takai 烯化和酯化,以提供精心设计的 C1-C5/C20-C26 片段 3。